American Can Company

Clifford Clayton Goehring

James A Wachtel

Ilie Mila Belivakici

William Joseph Lahm

Carl Richard Storms

Cups having a plastic, foam sheet sidewall are molded with bottom walls made from pre-expanded, plastic, foam beads. The beads are injected into the bottom of the mold cavity, and steam is introduced into the mold cavity to simultaneously fuse and mold the cup.

Foam bead bottom plastic cup and method of making same

Cups having a sidewall made from foam sheet plastic with a fusion sealed, lapped seam, wherein the lapped seam and the sidewall immediately adjacent the lapped seam are of identical thickness, are provided with additional rigidity per unit wall thickness by compressing the foam sheet either in-line with the foam extrusion operation or up to several months after extrusion. The cup is characterized by a substantial skin on only the outer surface of the sidewall.

Growing community of inventors

Princeton, NJ, United States of America

Clifford Clayton Goehring